<template>
  <div>当前鼠标位置</div>
  <div>x: {{ mouse.x }}</div>
  <div>y: {{ mouse.y }}</div>
  <div>当前点击次数：{{ count }}</div>
  <button @click="add">点击</button>
</template>

<script>
import { onMounted, onUnmounted, reactive, ref } from 'vue'

export default {
  setup () {
    const count = ref(0)
    const add = () => {
      count.value++
    }

    const mouse = reactive({
      x: 0,
      y: 0
    })

    const move = e => {
      mouse.x = e.pageX
      mouse.y = e.pageY
    }
    onMounted(() => {
      document.addEventListener('mousemove', move)
    })
    onUnmounted(() => {
      document.removeEventListener('mousemove', move)
    })
    return {
      count,
      add,
      mouse
    }
  }
}
</script>
